Fused Alumina-Magnesia Spinel, coming from high purity magnesia and alumina after smelt in arc furnaces at high temperature, has the following excellent characteristics, such as nice color and appearance, high bulk density, strong resistance to exfoliation and stable resistance to thermal shock, which enable the product to be widely used in rotary kilns, the roof of electric furnaces, ladles and metallurgical industries etc.Grain size: 0-1, 1-3, 3value="5" tcsc="0" unitname="mm" w:st="on">-5mm, 120,180,240,320mesh